Problem submitting finished Folding@Home units

Back with renewed FAH problem on WinXP Media Center computer; the program can't connect to submit finished units. Four are stacked up, one having finished only moments ago. Several days ago, I had removed two units and one that was being worked on, reinstalled from scratch, but problem persists. I've tried the 11-22-06 suggestions given me for dealing with similar problem; can't get them to work. I've unchecked use IE settings, and I've told Comodo Pro Firewall (the free one) that FAH is trusted ap. Also running Norton Systemworks, but can't find in this version where the list/settings are to determine whether it is foiling submissions. FAH 503 is working fine on another computer (WinXP Home) with Comodo but without Norton (hmmm, is that a hint? *g*) ... anyway, I'm stymied; suggestions please?

here's what FAHlog said before the most recent unit finished (it is "06"):

[06:13:58] + Attempting to send results
[06:14:10] Couldn't send HTTP request to server (wininet)
[06:14:10] + Could not connect to Work Server (results)
[06:14:10] (171.64.122.76:8080)
[06:14:10] Could not transmit unit 03 to Collection server; keeping in queue.


[06:14:10] + Attempting to send results
[06:14:54] Couldn't send HTTP request to server (wininet)
[06:14:54] + Could not connect to Work Server (results)
[06:14:54] (130.49.240.81:8080)
[06:14:54] - Error: Could not transmit unit 04 (completed March 20) to work server.


[06:14:54] + Attempting to send results
[06:15:17] Completed 1486353 out of 1500000 steps (99)
[06:15:17] Extra SSE boost OK.
[06:15:47] Couldn't send HTTP request to server (wininet)
[06:15:47] + Could not connect to Work Server (results)
[06:15:47] (130.49.240.77:8080)
[06:15:47] Could not transmit unit 04 to Collection server; keeping in queue.


[06:15:47] + Attempting to send results
[06:16:37] Couldn't send HTTP request to server (wininet)
[06:16:37] + Could not connect to Work Server (results)
[06:16:37] (171.64.122.72:8080)
[06:16:37] - Error: Could not transmit unit 05 (completed March 22) to work server.

 

Belay my request. I don't know what changed, but after several days' of failing submissions, it's all working again fine now.

 

I'm running it on both cores, the GUI one worked fine all along but the service hasn't been able to update in at least 4 days. Today all of a sudden everything's working as it should. Coincidence?:confused